Pope Benedict XVI announced his resignation in Latin during a meeting of Vatican cardinals on Monday morning

Scientists say they are sure there is no chance of the 150ft (45.7m) wide space rock hitting the planet.

The International UFO Congress, the largest annual UFO conference in the world, will be celebrating its 22nd year this February 2013 in the Phoenix area.

Instead of blurred footage filmed on a shaky camera phone, viewers can clearly see the dark latticed spaceship flying overhead.

A close encounter of the rocky kind is set for Feb. 15, when an office-building-size asteroid will speed past Earth fcloser than some communications satellites.

Last July, dozens of theatergoers in Aurora, Colo., survived a massacre. Now they have to survive the people who think they're liars.

Odd, lights glowing and flickering in the early morning sky above Cape Coral on Jan. 27 had many Florida residents reporting possible UFOs

The nearest potentially habitable, Earth-like planet may be a scant 13 light-years away

An asteroid the size of a 15-story building will zoom past Earth next week, flying uncommonly close but posing no danger.

Wednesday was another key day for a challenge to the government's ability to indefinitely detain anyone under the laws of war.

DHS processed a total of 205,895 Freedom of Information Act (FOIA) requests during the year.

Earth-like worlds may be closer and more plentiful than anyone imagined.

The year 2012 was very active with reported sightings of Unidentified Flying Objects and encounters with strange creatures  as well as other mysterious events

A young boy had an unexpected encounter when he took video footage of the sky outside the aircraft he was travelling in.